Does anyone know if I can use a midi trigger such as a Roland BT-1 to MIDI trigger a song/pattern on an Alesis SR18 via an Alesis Trigger-IO? It seems such an obvious thing to do, but I can't find anywhere online where anyone has done this?

I want to have a basic cowbell/percussion line going in the mix whilst i fill and play over the top and just want to pre-program the line on my SR18 and start it with a drumstick strike on a MIDI trigger pad.